Finding the Fourth Proportional to 88,435.13, 122,039.69 and 48,148.79
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Solution
The fourth proportional to 88,435.13, 122,039.69 and 48,148.79 is: 66,444.89
Step by Step Solution
- Step 1: Write the proportion equation
88,435.13 : 122,039.69 = 48,148.79 : x - Step 2: Convert to fraction form
88,435.13/122,039.69 = 48,148.79/x - Step 3: Cross multiply
88,435.13x = 122,039.69 × 48,148.79 - Step 4: Simplify right side
88,435.13x = 5,876,062,554.53 - Step 5: Solve for x
x = 5,876,062,554.53/88,435.13 - Step 6: Final answer
x = 66,444.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.